Today whilst searching the net, I came across the PEEL Spotlight report from 2019, which shines a light on the shortcomings of UK police forces. One area of concern was the vetting of candidates. We know that Wayne Couzens worked for the Kent based nuclear constabulary, then the Met, so you would expect vetting to be fairly rigorous for those jobs.
It probably wasn't according to the report.
"Too many people working in forces don’t have the correct vetting
We are still deeply concerned by the proportion of people working in forces who don’t have the correct vetting. We are also concerned that some forces can’t provide clear information on who is vetted, who isn’t and what roles they occupy. There can be no excuse for shortcuts.
All forces agreed national standards for vetting in 2006. They have had over a decade to make sure everyone has the correct vetting. Some forces are in a very strong position and have taken the necessary steps. Others have not.
The government has recently announced a recruitment drive for 20,000 police officers over the next three years. With natural wastage as people leave the service, this means many more will need to be recruited to meet this target. This makes it even more vital that vetting units are fit for purpose, or they won’t be able to cope with the demand and vetting standards may fall."
www.justiceinspectorates.gov.uk/hmicfrs/wp-content/uploads/peel-spotlight-report-abuse-of-position-for-a-sexual-purpose-1.pdf